★★ Two thin lenses have optical powers of 4.0 D and 5.0 D, respectively. They are 0.90 m from each other. (a) Find the focal length of the lenses. (b) Find the location of the image of an object that is 0.50 m in front of the first lens. (c) Can you use the equation for the combined power of the lenses to solve this problem? Justify your answer.
★★ Two thin lenses have optical powers of 4.0 D and 5.0 D, respectively. They are 0.90 m from each other. (a) Find the focal length of the lenses. (b) Find the location of the image of an object that is 0.50 m in front of the first lens. (c) Can you use the equation for the combined power of the lenses to solve this problem? Justify your answer.
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Transcribed Image Text:61. ★★ Two thin lenses have optical powers of 4.0 D and
5.0 D, respectively. They are 0.90 m from each other.
(a) Find the focal length of the lenses.
(b)
(c)
Find the location of the image of an object that is
0.50 m in front of the first lens.
Can you use the equation for the combined power
of the lenses to solve this problem? Justify your
answer.
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